Multi-bay Antenna with Movable Sections for Interference Reduction
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Solution Overview
Problem
Multi-bay antenna systems face interference issues between antenna elements, affecting performance and stability, especially when the height of the antenna mast needs to be minimized while maintaining vehicle stability and receiving a wide frequency band.
Innovation Solution
The system includes movable sections with array antennas that adjust their spacing based on the frequency bands being received, using actuators and sensors to minimize interference by optimizing the interval between antennas during movement and maximizing height for signal measurement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the antenna mast height is minimized to maintain vehicle stability, then vehicle stability is improved, but interference between antenna elements increases
Solution Approach 1:
The patent implements a movable first section that can adjust its position relative to the second section, transforming the fixed antenna structure into a dynamic one. This allows the antenna system to adapt its configuration based on operational conditions, reducing interference between antenna elements while maintaining compact overall height for vehicle stability.
Solution Approach 2:
The antenna mast is divided into multiple sections (first section, second section, third section) that can move independently relative to each other. This segmentation allows selective adjustment of the first section containing the interfering antenna, enabling interference reduction without requiring the entire mast to be taller.
2Reliability
If the interval between antenna bays is increased to reduce interference, then reception performance is improved, but the overall antenna height increases
Solution Approach 1:
The patent employs dynamic adjustment of the first section's position to increase the interval between antenna bays only when needed for signal reception. During movement, the section remains compact; during measurement, it expands to optimize reception performance without permanently increasing antenna height.
Solution Approach 2:
The system proactively adjusts the first section's position based on detected movement conditions. When movement is detected, the section is positioned to minimize interference; when stationary for measurement, it is positioned to maximize reception performance, preparing the optimal configuration in advance.
3Stability of the object's composition
If the antenna mast is made shorter to maintain stability, then vehicle stability is improved, but the ability to receive wide frequency bands is compromised
Solution Approach 1:
The movable first section enables the compact antenna structure to dynamically optimize its configuration for different frequency bands. By adjusting the section's position, the system can maintain wide frequency band reception capability while keeping the overall mast height minimized for vehicle stability.
Solution Approach 2:
The system changes the spatial parameters (position and interval) of the antenna elements based on the frequency band being received. This allows the same compact physical structure to adapt its electromagnetic characteristics to maintain wide frequency band reception capability across different operating conditions.
4Adaptability or versatility
If multiple array antennas are added to receive multiple frequency bands, then frequency band coverage is improved, but interference between antennas increases
Solution Approach 1:
The patent places array antennas for different frequency bands in separate movable sections. The first section containing potentially interfering antennas can be independently positioned relative to the second section, allowing spatial separation to reduce interference while maintaining multi-frequency band coverage capability.
Solution Approach 2:
The relative positioning between sections containing different frequency band antennas is dynamically adjusted. When interference is detected or predicted, the system moves the first section to increase separation from the second section, reducing interference between the multi-frequency band array antennas while maintaining their coverage capability.
Data Source
AI summary
There are provided a multi-bay antenna apparatus and an operation method thereof. A multi-bay antenna apparatus may include a first section, a first array antenna mounted in the first section to receive a signal in a predetermined frequency band, a second section movably coupled with the first section, and a second array antenna mounted in the second section to receive a signal in a predetermined frequency band.